|Publication number||US6058572 A|
|Application number||US 08/948,411|
|Publication date||May 9, 2000|
|Filing date||Oct 9, 1997|
|Priority date||Oct 9, 1997|
|Also published as||CA2307049A1, CA2307049C, DE69813603D1, DE69813603T2, EP1028899A1, EP1028899B1, WO1999019223A1|
|Publication number||08948411, 948411, US 6058572 A, US 6058572A, US-A-6058572, US6058572 A, US6058572A|
|Original Assignee||Folkmar; Jan|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (9), Referenced by (32), Classifications (10), Legal Events (8)|
|External Links: USPTO, USPTO Assignment, Espacenet|
This invention relates to a reusable clip member for closing plastic bags or the like, for example freezer bags, although it is not necessarily limited to such use.
Reusable clips are well know in commerce; as described in U.S. Pat. No. 4,887,335, of common inventorship herewith, they may comprise a pair of generally co-extensive, axially extending jaws, one of which has a channel therealong, the other an upstanding rib. The jaws are hinged together at one axial end of each so as to be moveable into mutually confronting relationship, with the rib of the one jaw interleaved with the channel opening, so as to bear upon the interior walls along their length, and elastically deformed the channel walls. Latch means are disposed at the axial ends of the jaws opposed to the hinge for releasably latching the jaws in their closed position. A plastic bag is sealed with the clip by the action of compressing the opposed surfaces of the bag between the rib and the channel walls. Other clips of a similar nature are known, for example as described in U.S. Pat. No. 4,656,697. In all of these clips the jaws have a more or less uniform transverse cross-section along their length, and it is usually intended that a bag to be sealed will extend over the whole length of the jaws. Given that the clips may be used with bags of different sizes, it may arise that the bag will overhang the jaws somewhat, thereby interfering with the latch and/or the hinge, and quite possibly puncturing the bag.
The clips are typically low cost items, and any reduction in size may provide an important economy in manufacturing cost, and further it may facilitate the packaging of the clips for distribution with the plastic bags.
It is an object of this invention to provide clips which facilitate the positioning of a bag relative to the clip prior to closure.
It is another object with this invention to provide clips of a reduced size and cost, for a given size of a bag to be closed.
In accordance with one aspect of this invention, a clip which is broadly of the foregoing nature is formed with a lacuna in at least one of the rib portion of one jaw and the channelled jaw, as seen in profile. Preferably, the lacuna is provided in the rib portion only, suitably extending over not less than about 50 percent of the axial length of the rib. The lacuna suitably reduces the degree to which the rib interleafs within the channel, and in practice it is found that the upper surface of the rib in the lacuna portion thereof may be more or less in the plane of the entrance to the channel in the confronting portion thereof. Also suitably and preferably, the jaws in the confronting portions of the lacuna will be spaced apart marginally so as to provide a serpentine passage therebetween within which the walls of the bag will locate and be compressed to form a seal.
A clip of this nature will permit the walls of the bag to be enclosed to be gathered together in a bunched manner, and the end portions of the rib, which form upstanding tabs, will serve to retain the gather therebetween. Accordingly, it is less likely that the bag will extend axially beyond the rib so as to interfere with the latch or the hinge of the clip. The gathering of the bag in this manner permits the axial length of the clip to be reduced, in comparison to the prior art clips, with a reduction of some 50 percent being wholly feasible for a given bag size.
FIG. 1 shows a clip in accordance with the invention, in a closed perspective view, with a portion of a bag engaged thereby;
FIG. 2 shows the clip of FIG. 1 open and in side elevation;
FIG. 3 is a section on line 3--3 of FIG. 2;
FIG. 4 is a section on line 4--4 of FIG. 2;
FIG. 5 is a section on line 5--5 of FIG. 1; and
FIG. 6 and FIG. 7 are similar to FIG. 2, but show the right-hand side portion of the clip only, and illustrate variants of the rib structure.
Referring to the drawings in detail, a clip in accordance with the invention is identified generally therein by the numeral 10. Clip 10 comprises a first jaw 12 including a flange portion 14 and a rib portion 16 upstanding therefrom in axial alignment therewith. Clip 10 further comprises a second jaw 20 defined in part by a pair of axially extending side walls 22 defining a channel 24 therebetween, the side walls terminating along their upper edge with lips 26. Jaws 12 and 20 are interconnected by a hinge 30 to permit the jaws to be swung into mutually confronting relationship. A small, transversely aligned shoulder 32 is disposed on flange portion 14 adjacent the axial end thereof opposed to hinge 30, the shoulder and the hinge serving to space flange portion 14 marginally apart from lips 26 along their length. Jaws 12 and 20 are provided with co-operating latching means comprising a toothed shoulder 34 on the one jaw in axially opposed relationship to hinge 30, and a resilient tongue 36 disposed on the other jaw, the tongue having a toothed shoulder 38 thereon.
Rib portion 16 of jaw 12 is shaped in profile so as to form a lacuna 40 which extends over approximately one-half of the length of the rib portion in medial portions thereof, which lacuna is defined in part by upstanding tabs 42, 44 respectively disposed adjacent the lateral ends of jaw 12. Rib portion 16 in lacuna portion 40 thereof is dimensioned in its thickness so as to provide a lateral clearance from the interior wall surfaces of side walls 22 of channel 24, while the height of this rib portion is such that the rib only marginally penetrates within channel 24. Tab portions 42, 44 penetrate more fully within channel 24, but the degree of penetration and the thickness of the tab portions is not critical, as will be apparent from the following description of the manner of operation of clip 10.
Clip 10 is used to close and seal the bag B of FIG. 1; such bag may typically have a wall thickness in the range of about 0.04 mm to about 0.08 mm, and may have a width in the portion thereof to be sealed which is several times that of the axial length of lacuna portion 40 of rib 16. Bag B is gathered in a haphazard manner within the lacuna 40, and jaw 20 is rotated about hinge 30 to permit the snap engagement of toothed elements 34 and 38, whereby jaws 12 and 20 compress the multiple layers of bag B therebetween along a serpentine path to provide a seal. The compression of multiple layers of bag B between jaws 12 and 20 may give rise to undesirable skewing forces on both hinge 30 and the latching elements as the jaws are moved to their confronting relationship; detaching or skewing forces may also arise if bag B is pulled relative to clip 10 following the securement of the clip about the bag. These skewing forces are generally nullified by tabs 42, 44 which engage the side walls 22 of channel 24.
The degree to which clip 10 grips onto bag 10 may be controlled easily by varying the profile of rib 16 in the lacuna portion. One such variation is shown in FIG. 6 where the rib in the lacuna portion is provided with undulations 50. A further variation is shown in FIG. 7 wherein the toothed element 52 is provided on rib 16 in the lacuna portion 40. Where the axial length of lacuna portion 40 permits, a plurality of toothed elements may be provided. Other variations will occur to those skilled in the art.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US4275485 *||Dec 10, 1979||Jun 30, 1981||Hutchison Charles L||Sealing devices|
|US4296529 *||Jul 11, 1979||Oct 27, 1981||Brown Stanley E||Bag sealing device|
|US4382453 *||Jun 4, 1981||May 10, 1983||Abbott Laboratories||Flow ristrictor for flexible tubing|
|US4551888 *||Sep 23, 1983||Nov 12, 1985||Illinois Tool Works Inc.||Bag shut-off clamp|
|US4656697 *||Mar 18, 1985||Apr 14, 1987||Naeslund Jan Ingemar||Bag clip|
|US4887335 *||Nov 15, 1988||Dec 19, 1989||Ice-Pack Service Ag||Closure for closing plastic bags and the like|
|US4923153 *||Jan 23, 1989||May 8, 1990||Kitagawa Industries Co., Ltd.||Strip clamp|
|US5423831 *||Oct 21, 1993||Jun 13, 1995||Nates; Colin||Clamp|
|US5713108 *||Jun 27, 1996||Feb 3, 1998||Solomon; Howard||Flexible bag sealing device|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US6527615 *||Jan 16, 2002||Mar 4, 2003||Ray Boehler||Balloon closure device|
|US6702794 *||Apr 23, 2002||Mar 9, 2004||Bristol-Myers Squibb Company||Ostomy pouch clamp|
|US7284303||Jan 23, 2004||Oct 23, 2007||Rustydog Inc.||Clip type system for bags and methods of manufacture|
|US7334300 *||Sep 27, 2002||Feb 26, 2008||Jms Co., Ltd.||Clip used for clipping a hollow member|
|US7428771 *||Oct 23, 2002||Sep 30, 2008||Jms Co., Ltd.||Clip for dividing two liquids|
|US7487808 *||May 17, 2007||Feb 10, 2009||Gea Niro Gmbh||Coupling seal docking device comprising two of said coupling seals and container comprising at least one of said coupling seals|
|US7494022||Mar 17, 2004||Feb 24, 2009||Helen Of Troy Limited||Bag retention apparatus and method|
|US7565780||Apr 12, 2007||Jul 28, 2009||Poly-Clip System Corp.||Clip and clipper|
|US7815613||Feb 9, 2004||Oct 19, 2010||Medical Components, Inc.||Flexible conduit clamp|
|US7914518||Dec 27, 2006||Mar 29, 2011||Medical Components, Inc.||Methods of implanting a dual catheter|
|US8122571 *||Apr 13, 2007||Feb 28, 2012||Poly-Clip System Gmbh & Co. Kg||Closure clip and process for the production thereof|
|US9242766||May 21, 2013||Jan 26, 2016||Gregory Roy Ruddell||Bag clamp with a reciprocating blade|
|US20030198704 *||Apr 23, 2002||Oct 23, 2003||Blum John L.||Ostomy pouch clamp|
|US20040255436 *||Sep 27, 2002||Dec 23, 2004||Sumiya Fujii||Clip|
|US20050076482 *||Apr 22, 2003||Apr 14, 2005||Emilio Costa||Reusable seal applicable to a slender portion of a commercial article|
|US20050205579 *||Mar 17, 2004||Sep 22, 2005||Buchalter Mark A||Bag retention apparatus and method|
|US20060053596 *||Jan 23, 2004||Mar 16, 2006||Pirottavio Canegallo||Clip type system for bags and methods of manufacture|
|US20060107502 *||Oct 23, 2002||May 25, 2006||Jms Co., Ltd||Clip for dividing two liquids|
|US20060217247 *||May 9, 2003||Sep 28, 2006||Sandor Potak||Elastic exercise apparatus|
|US20070240380 *||Apr 13, 2007||Oct 18, 2007||Poly-Clip System Gmbh & Co. Kg||Closure clip and process for the production thereof|
|US20070261761 *||May 17, 2007||Nov 15, 2007||Gea Niro Gmbh||Coupling seal docking device comprising two of said coupling seals and container comprising at least one of said coupling seals|
|US20070289252 *||Apr 12, 2007||Dec 20, 2007||Poly-Clip System Corp.||Clip and clipper|
|US20120118895 *||Nov 16, 2010||May 17, 2012||Ching-Chang Lin||Bag tuck for trash receptacle|
|DE102004018589A1 *||Apr 16, 2004||Nov 10, 2005||Martin Ecker||Verschlusseinrichtung für einen Sack|
|DE102004018589B4 *||Apr 16, 2004||Mar 23, 2006||Martin Ecker||Verschlusseinrichtung für einen Sack|
|WO2002076836A2||Mar 21, 2002||Oct 3, 2002||Folkmar, Raphaela||Clip with separable jaws|
|WO2004067388A2||Jan 23, 2004||Aug 12, 2004||Rustydog Inc.||Clip type system for bags and methods of manufacture|
|WO2004067388A3 *||Jan 23, 2004||Oct 7, 2004||Rustydog Inc||Clip type system for bags and methods of manufacture|
|WO2007090059A2 *||Jan 26, 2007||Aug 9, 2007||Poly-Clip System Corp.||Clip and clipper|
|WO2007090059A3 *||Jan 26, 2007||Dec 27, 2007||Eggo L Haschke||Clip and clipper|
|WO2014029408A1||Aug 24, 2012||Feb 27, 2014||Martin Ecker||Clip closure|
|WO2015170239A1 *||May 4, 2015||Nov 12, 2015||Nestec S.A.||Closure apparatus for flexible pouch|
|U.S. Classification||24/30.50R, 24/30.50P, 24/543|
|Cooperative Classification||Y02W30/807, B65D33/1675, Y10T24/153, Y10T24/44752, Y10T24/15|
|Sep 21, 2000||AS||Assignment|
Owner name: FOLKMAR, RAPHAELA, SWITZERLAND
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FOLKMAR, JAN;REEL/FRAME:011103/0430
Effective date: 20000427
|Nov 26, 2003||REMI||Maintenance fee reminder mailed|
|May 7, 2004||FPAY||Fee payment|
Year of fee payment: 4
|May 7, 2004||SULP||Surcharge for late payment|
|Nov 8, 2007||FPAY||Fee payment|
Year of fee payment: 8
|Dec 19, 2011||REMI||Maintenance fee reminder mailed|
|May 9, 2012||LAPS||Lapse for failure to pay maintenance fees|
|Jun 26, 2012||FP||Expired due to failure to pay maintenance fee|
Effective date: 20120509